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Magnesium Citrate 500mg
150mg elemental magnesium per capsule (40% NRV) · one active ingredient · 120 vegan capsules · up to a 4-month supply
- 150mg of elemental magnesium per capsule, 40% of your daily reference intake
- One active ingredient: magnesium citrate at 500mg per capsule
- Magnesium contributes to the reduction of tiredness and fatigue and to normal muscle function
- 120 capsules, up to four months at one a day, around 9p a day
£0.09 a day · at 1 capsule a day · up to 4 months per bottle
Our cheapest magnesium per capsule, and the longest lasting bottle we make.
Multi-buy discount applied automatically at checkout
Why choose our Magnesium Citrate
One active ingredient in a well absorbed form, with the elemental magnesium figure stated rather than hidden behind the compound weight.
Magnesium contributes to the reduction of tiredness and fatigue, and to normal energy-yielding metabolism.
Magnesium contributes to normal muscle function, to the normal functioning of the nervous system, and to electrolyte balance.
Magnesium contributes to normal psychological function, and to the maintenance of normal bones and teeth.
Magnesium bound to citric acid is considerably more soluble than magnesium oxide, the cheap inorganic salt most budget supplements use.
The number most magnesium labels do not show you
Magnesium is never sold on its own. It is always bound to something: citric acid here, glycine in a bisglycinate, or oxygen in the cheap oxide form. So every magnesium product has two weights, the whole compound and the mineral itself, and they are very different numbers.
Each capsule here holds 500mg of magnesium citrate, of which 150mg is elemental magnesium, 40% of your daily reference intake. Both figures are printed. A product advertising a large milligram number without an elemental figure is quoting the compound, and you have no way of knowing what you are actually taking.
150mg of elemental magnesium, 40% of the reference intake, taken with food.
120 capsules at one a day. Nothing else in our magnesium range lasts as long.
You can take two, but read the question below on total intake before you do.
How our magnesium citrate compares
A lot of magnesium on the shelf is oxide, and a lot of citrate is sold on the compound weight alone.
| Our Magnesium Citrate | Typical magnesium | |
|---|---|---|
| Elemental magnesium stated | 150mg (40% NRV) | Often only the salt weight |
| Magnesium form | Citrate | Often oxide |
| Active ingredients | One | Blends and fillers |
| Capsules per bottle | 120, up to 4 months | 60 |
| Cost per day | £0.09 | Typically higher |
| Vegan capsule shell | Varies | |
| Made in the UK | Varies |
How to run it
One capsule a day with a meal. Citrate is the form most likely to loosen things at first, so food helps.
Magnesium is a daily mineral rather than a one-off. One bottle covers four months at a capsule a day.
Review how you are getting on. If you take other magnesium supplements, add up your total daily intake across all of them.
Product details
Description
Magnesium Citrate 500mg Capsules - 120 Vegan Capsules
If you want a single-ingredient magnesium supplement in one of the most widely used and well-absorbed forms available, these capsules deliver 500mg of magnesium citrate per capsule, providing 150mg of elemental magnesium (40% NRV). Magnesium citrate is created by combining magnesium with citric acid, which enhances its solubility in the digestive tract compared to magnesium oxide. 120 capsules per bottle provides up to a 4-month supply at 1 capsule per day. Suitable for vegetarians and vegans. UK manufactured to strict GMP standards.
Why Magnesium Citrate
Magnesium is involved in over 300 enzymatic reactions in the body, and choosing the right form matters. Magnesium citrate is one of the most popular forms because it combines good bioavailability with a clean, straightforward ingredient profile. Each capsule provides 150mg of elemental magnesium (40% NRV), meaning a single capsule covers a significant portion of your daily requirement.
Magnesium contributes to the reduction of tiredness and fatigue, normal muscle function, normal functioning of the nervous system, normal energy-yielding metabolism, electrolyte balance, and normal psychological function. These are all EU-approved health claims, making magnesium one of the most well-supported minerals in terms of recognised benefits. The citrate form is also known for being gentle on the digestive system. See our full magnesium citrate guide for more information.
What You Get in Every Capsule
- Magnesium Citrate 500mg (providing 150mg elemental Magnesium, 40% NRV): One of the most bioavailable forms of magnesium, well-absorbed in the digestive tract.
- Capsule Shell: HPMC (plant-based): Vegan-friendly capsule with no gelatin.
120 capsules per bottle. At 1 capsule per day, a 4-month supply. Can also be taken at 2 capsules per day (2-month supply).
Vegan Friendly.
Manufactured in the UK to strict GMP standards. Suitable for vegetarians and vegans. Letterbox-friendly packaging for convenient delivery.
Who Is This For?
If you want a simple, high-quality magnesium supplement without unnecessary extras, these capsules are designed for you. They suit adults who want a single-form magnesium supplement with good bioavailability, anyone looking to support normal muscle function, energy levels, or nervous system function, active individuals who lose magnesium through sweat during exercise, those who prefer a flexible dosing option of 1 to 2 capsules per day, and anyone who values a clean, vegan-friendly formula with transparent ingredient labelling.
How to Take
Take 1 to 2 capsules daily with food. Do not exceed the recommended daily intake unless advised by a healthcare professional. 120 capsules per bottle. Store in a cool, dry place out of reach of children. This is a food supplement and should be used alongside a balanced, varied diet, not as a substitute. If you are on medication, under medical supervision, pregnant, or nursing, consult your GP before use. Discontinue use and contact your GP in the event of an adverse reaction.
Browse our full range of magnesium supplements to find the right form for your needs.
Ingredients & nutritionals
One capsule typically provides: Magnesium 150mg (40% NRV*) from Magnesium Citrate 500mg *Nutrient Reference Value
Full Ingredients: Magnesium Citrate, Capsule Shell: Hydroxypropyl Methylcellulose, Bulking Agent: Brown Rice Flour, Magnesium Stearate, Silicon Dioxide.
How to take
Take 1 to 2 capsules daily with food. One capsule provides 150mg of elemental magnesium, 40% NRV. A 120-capsule bottle gives up to a 4-month supply at one a day.
Do not exceed the recommended daily intake unless advised by a healthcare professional. If you are pregnant, nursing, on medication, or under medical supervision, consult your GP before use. Store in a cool, dry place out of reach of children.
Cautions
Do not exceed the recommended daily intake unless advised by a healthcare professional.
If you are on medication, under medical supervision, pregnant or nursing always consult your GP before taking health supplements. You should not take supplements as a substitute for a varied balanced diet. Side-effects from this supplement are rare but please discontinue use and contact your GP immediately in the event of an adverse reaction. Store in a cool, dry place out of reach of children.
Shipping & returns
Free UK shipping on all UK orders. Dispatched within 1 working day, Royal Mail 48. Covered by our 30-day money-back guarantee. Return within 30 days for a full refund.
Frequently asked questions
Which magnesium should I choose?
We make three, and they suit different people.
This one, Magnesium Citrate, is a single active in a well absorbed form, 150mg of elemental magnesium per capsule, 120 per pot. It is our cheapest per capsule and the longest lasting bottle. Choose it if you want straightforward magnesium and good value.
Magnesium Glycinate is chelated to glycine and the one most often chosen by people who have found other forms harsh. 300mg per serving with added B6.
Triple Magnesium Complex combines bisglycinate, malate and taurate with B6, at 375mg per serving, which is 100% NRV.
Is it 500mg or 150mg of magnesium?
Both figures are right, and they measure different things.
Each capsule contains 500mg of magnesium citrate, which is the whole compound: magnesium bound to citric acid. Of that, 150mg is elemental magnesium, the mineral itself, and that is the number that counts towards your 375mg daily reference intake. So one capsule gives you 40% NRV.
This matters when you compare products. A competitor advertising 1500mg magnesium citrate is quoting the compound weight, and unless they state the elemental figure you cannot tell what you are actually getting. Ours is on the label and in the title.
What does magnesium actually do?
Magnesium contributes to the reduction of tiredness and fatigue, to normal energy-yielding metabolism, to normal muscle function, to the normal functioning of the nervous system, to normal psychological function, to electrolyte balance, to normal protein synthesis, and to the maintenance of normal bones and teeth. It also has a role in the process of cell division.
Those are the authorised claims. A capsule provides 40% of the reference intake, so it is a meaningful contribution alongside what you get from food.
Will it upset my stomach?
Possibly at first, and we would rather warn you than have you find out. Citrate is the form of magnesium most associated with a loosening effect on the bowel, particularly when you first start or if you take it on an empty stomach.
Three things help: take it with food, start on one capsule a day rather than two, and give it a week. If it still does not suit you, our Magnesium Glycinate is the chelated form people usually move to for exactly this reason, and we will refund this one under the 30-day guarantee.
Should I take one capsule or two?
One is the sensible default. It provides 150mg of elemental magnesium, 40% of the reference intake, and leaves plenty of room for what you get from food.
Two capsules gives 300mg. Worth knowing before you do: European safety guidance sets 250mg a day as the upper level for supplemental magnesium from readily dissociable salts, and citrate is one of those. That guidance is about supplements specifically, not the magnesium in your diet, and exceeding it is most likely to show up as a loosening effect rather than anything more serious.
If you want a higher daily intake, speak to your GP, and do not take two capsules alongside another magnesium supplement without adding up the total first.
How long does a bottle last?
120 capsules. At one a day that is a full four months, which is the longest running bottle in our magnesium range. At two a day it is two months.
What is actually in the capsule?
Magnesium citrate, an HPMC capsule shell, brown rice flour as a bulking agent, magnesium stearate as an anti-caking agent, and silicon dioxide.
One active ingredient, and the rest is the capsule and what holds it together. Each capsule provides magnesium 150mg (40% NRV) from 500mg of magnesium citrate.
Is it suitable for vegans?
Yes. The capsule shell is plant-derived HPMC and there are no animal-derived ingredients.
Can I take it with other supplements?
Yes, as part of a normal routine. The one thing to watch is other magnesium: multivitamins and sports formulas often contain it, so add up your total before doubling your dose here.
If you are pregnant, nursing, on medication or under medical supervision, speak to your GP before use.
What is your returns policy?
Every order is covered by our 30-day money-back guarantee. If it is not for you, contact us and we will refund you, no questions asked.
Try it risk-free for 30 days
Not completely happy? Send it back for a full refund, no questions asked. UK-made to GMP standards.
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